Understanding Lombok @Accessors Annotation: fluent, chain, and prefix attributes

Preface

In your work you may encounter the annotation @Accessors(chain = true) from the Lombok library and wonder what it does.

1. @Accessors source code

Opening the source of @Accessors reveals:

1) The annotation mainly controls how getter and setter methods are generated for fields.

2) When applied to a class, it affects all fields; when applied to a specific field, it only affects that field.

2. @Accessors attribute description

2.1 fluent attribute

If set to true , the generated getter does not have the get prefix and the setter does not have the set prefix.

2.2 chain attribute

If set to true , the setter returns the current object, enabling method chaining.

2.3 prefix attribute

This attribute is a string array; when it contains values, those prefixes are ignored when generating getter and setter names.

@Accessors(fluent = true, chain = true, prefix = {"m_", "_"})

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